<span>A. Rosaline is my guess</span>
Answer:
A: lemon brown owes the men money
Each of these sentences are full sentences except for the last one. The other sentences give a subject:
"I watched the movie"
"It was funny"
"We went together"
The last one has no subject. The sentence "Because I don't drive" could not stand alone and make that much sense. The sentence needs a first or a second part, such as "My friend drove us because I don't drive," or, "Because I don't drive, my friend drove us."